Epson P4000 - Multimedia Storage Viewer Product Support Bulletin page 9

5. Press and hold down the "OK" button while sliding the "POWER" switch as shown
below.
Release the Power switch and continue holding down the OK button until the message
Note:
below appears on the screen. If you do not see this screen, power off the unit
and start the firmware process again.
During the update process, the message screen will display the current firmware and
updated firmware versions. Then the message "Updating Resources" will appear.
Important:
Do not remove the battery or disconnect the AC adapter during the
firmware update process.
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